The full layer is represented in the diagram of Figure REF .
We simulate the structuring element's shape by working with the parameter \(r\)  of the max pooling and the pixel shuffle layer.
We notice that by adding a Batch Normalisation [1]} before the Projection convolution step, the results were more stable. Hence, we used it on all our layers. We denote this layer as a pseudo dilation because it is not an increasing function nor an extensive function between the input and the output. Still, it checks these properties between the input and output of the max pooling.
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